Menu
Search
Filters
Close
Menu

ASSESSMENT OF NOVEL COATINGS IN COMPARISON TO CONVENTIONAL ZINC-RICH COATING FOR BRIDGE APPLICATION

ASSESSMENT OF NOVEL COATINGS IN COMPARISON TO CONVENTIONAL ZINC-RICH COATING FOR BRIDGE APPLICATION
Available for download

Coatings are widely used to mitigate corrosion of structural steel in aggressive humid environments. Zinc-rich primer three-coat paint systems are widely used to mitigate corrosion of steel bridges. However, the associated costs of its required maintenance are high. As part of a research program, chemically bonded phosphate ceramics (CBPC), thermal diffusion galvanizing (TDG) and metallizing coatings along with the current 3-coat systems were exposed in outdoor conditions for up to 2 years and in salt-fog exposure for up to 14,600 hours. 

Product Number: 51218-105-SG
Author: Md Ahsan Sabbir, Saiada Fuadi Fancy, Kingsley Lau, Dale DeFord
Publication Date: 2018
Industry: Coatings
$0.00
$20.00
$20.00

Coatings are widely used to mitigate corrosion of structural steel in aggressive humid environments. Zinc-rich primer three-coat paint systems are widely used to mitigate corrosion of steel bridges. However, the associated costs of its required maintenance are high. As part of a research program, chemically bonded phosphate ceramics (CBPC), thermal diffusion galvanizing (TDG) and metallizing coatings along with the current 3-coat systems were exposed in outdoor conditions for up to 2 years and in salt-fog exposure for up to 14,600 hours. Testing included visual photo-documentation, coating thickness, coating pull-off strengths, and optical microscopy. Generally, the coatings provided corrosion mitigation of the steel but some limitations including possible surface staining, iron consumption, and coating degradation should be further addressed. Moisture presence was observed to be important in the degradation of all of the coating systems.

Coatings are widely used to mitigate corrosion of structural steel in aggressive humid environments. Zinc-rich primer three-coat paint systems are widely used to mitigate corrosion of steel bridges. However, the associated costs of its required maintenance are high. As part of a research program, chemically bonded phosphate ceramics (CBPC), thermal diffusion galvanizing (TDG) and metallizing coatings along with the current 3-coat systems were exposed in outdoor conditions for up to 2 years and in salt-fog exposure for up to 14,600 hours. Testing included visual photo-documentation, coating thickness, coating pull-off strengths, and optical microscopy. Generally, the coatings provided corrosion mitigation of the steel but some limitations including possible surface staining, iron consumption, and coating degradation should be further addressed. Moisture presence was observed to be important in the degradation of all of the coating systems.

Product tags
Also Purchased
Activated Zinc Technology; Making Zinc-Rich Epoxies Work Better for the Applicator and the Owner
Available for download

Activated Zinc Technology; Making Zinc-Rich Epoxies Work Better for the Applicator and the Owner

Product Number: 41216-985-SG
Author: James McDonald, Pablo L. Bernad
Publication Date: 2016
$20.00

Inorganic zinc-rich coatings (IOZ’s) are often considered the gold standard for corrosion protection in atmospheric environments. Frequently, zinc epoxy coatings are considered second best among the most effective coatings for corrosion protection. However, current zinc-rich coating technology is not exempt of limitations, such as poor mechanical properties of the film, rigid environmental application conditions, or the inefficient use of zinc particles for providing galvanic protection. Due to these limitations, a number of asset owners have made the decision not to use zinc-rich coatings to maintain coating systems in marine and offshore environments
Blasting at Long Distance. Corrosion Maintenance on the Sydney Harbour Bridge: a 30 Year Case Study
Available for download

Blasting at Long Distance. Corrosion Maintenance on the Sydney Harbour Bridge: a 30 Year Case Study

Product Number: 51220-245-SG
Author: Charlie Gooden
Publication Date: 2020
$20.00

The aim of this case study is to identify the challenges of blasting a large bridge, blasting at long distances from equipment, and painting on a maintenance program vs the whole bridge. Then we provide recommendations and suggestions how to make it profitable, based on real-life project experience.
Benefits of Micaceous Iron Oxide, Aluminum Flake and Glass Flake Filled High Performance Coatings
Available for download

Benefits of Micaceous Iron Oxide, Aluminum Flake and Glass Flake Filled High Performance Coatings

Product Number: 41207-315-SG
Author: Mitch Connor, Dan Baribault
Publication Date: 2007
$20.00

For several decades, engineered coatings have been used to protect steel from corrosion. Many formulas were made and tested for their ability to prevent corrosion. Changes in the formulas would include different resins, pigments, solvents and additives. In this paper, we will talk about three specific pigments, which are also commonly referred to as reinforcing pigments. 
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support